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| Mirrors > Home > ILE Home > Th. List > sseqtrrd | Unicode version | ||
| Description: Substitution of equality into a subclass relationship. (Contributed by NM, 25-Apr-2004.) |
| Ref | Expression |
|---|---|
| sseqtrrd.1 |
|
| sseqtrrd.2 |
|
| Ref | Expression |
|---|---|
| sseqtrrd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sseqtrrd.1 |
. 2
| |
| 2 | sseqtrrd.2 |
. . 3
| |
| 3 | 2 | eqcomd 2235 |
. 2
|
| 4 | 1, 3 | sseqtrd 3262 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-11 1552 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-in 3203 df-ss 3210 |
| This theorem is referenced by: sseqtrrid 3275 fnfvima 5878 tfrlemiubacc 6482 tfr1onlemubacc 6498 tfrcllemubacc 6511 rdgivallem 6533 nnnninf 7304 nninfwlpoimlemg 7353 ccatass 11156 swrdval2 11198 dfphi2 12757 ctinf 13016 imasaddfnlemg 13362 imasaddvallemg 13363 subsubm 13531 subsubg 13749 subsubrng 14193 subsubrg 14224 lidlss 14455 toponss 14715 ssntr 14811 iscnp3 14892 cnprcl2k 14895 tgcn 14897 tgcnp 14898 ssidcn 14899 cncnp 14919 txcnp 14960 imasnopn 14988 hmeontr 15002 blssec 15127 blssopn 15174 xmettx 15199 metcnp 15201 plyaddlem1 15436 plymullem1 15437 plycoeid3 15446 nnsf 16431 nninfsellemsuc 16438 |
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